US9500032B2 - Transmitter housing and method for measuring a fluid pressure - Google Patents
Transmitter housing and method for measuring a fluid pressure Download PDFInfo
- Publication number
- US9500032B2 US9500032B2 US14/253,390 US201414253390A US9500032B2 US 9500032 B2 US9500032 B2 US 9500032B2 US 201414253390 A US201414253390 A US 201414253390A US 9500032 B2 US9500032 B2 US 9500032B2
- Authority
- US
- United States
- Prior art keywords
- transmitter housing
- collector space
- drilling
- housing according
- transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title description 5
- 238000005553 drilling Methods 0.000 claims abstract description 66
- 239000000523 sample Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Definitions
- the invention relates to a transmitter housing of an auger device and a method for measuring a fluid pressure in a drilling channel.
- the invention relates to a transmitter housing for HDD (Horizontal Directional Drilling).
- the obstacles in front of the drill head of the drilling device represent a problem.
- These types of obstacles may be, for example, hard rock fragments that often cannot be demolished by the drilling devices being used.
- there may also be water lines, gas lines, telephone lines, and/or electrical lines in the ground close to the surface that must not be destroyed by drilling.
- the drill head of a horizontal drilling device is the most greatly loaded component, because it is used to transfer the static and dynamic (if there is a percussive device) drilling forces, generated by a drive unit on the horizontal drilling device, to the ground.
- the drill head is attached on the foremost end of a drill pipe, in which the drill pipe usually consists of a plurality of linkages, connected to one another, for example, via screw closures.
- the rear end of the drill pipe may be connected to a drive unit, by means of which forces may be transferred to it in the longitudinal direction of the drill pipe, as well as a torque.
- the drill pipe, including the drill head attached to it may be driven in the direction of thrust and retraction, as well as rotationally, by means of the drive unit.
- the drill head may be a so-called controlled drill head whose front surface, at least in certain areas, is tilted with respect to its own longitudinal axis and, consequently, with respect to the drilling device.
- the object of the invention is therefore to create a transmitter housing of a drilling device with a drilling fluid feed line and/or a method for measuring a fluid pressure in a drilling channel with which, in addition to the locating, the measuring of the pressure in the drilling channel would be simplified and relatively precise.
- the core of the invention is to design a transmitter housing such that, in addition to locating, meaning determining the location and/or position of the transmitter housing, a pressure measurement of the pressure in the drilling channel is also possible. This is to be done primarily with special consideration for the harsh conditions occurring in the ground and particularly in the HDD area.
- the core of the invention is to provide a transmitter housing of a drilling device in which the drilling device has a drilling fluid feed line, particularly for flushing fluid.
- the interior of the transmitter housing has a collection space for a pressure sensor of a locating probe. This is to detect a pressure increase in the drilling channel.
- the pressure in the drilling channel can thus be checked by an operator and/or automatically. This means that suitable measures can be undertaken, initiated automatically and/or by an operator, when the pressure in the drilling channel increases.
- the locating probe may be designed in a single unit with the pressure sensor.
- the value of the pressure determined via the pressure sensor may be transmitted to the ground surface via a wireless transmitter.
- the pressure sensor, the locating probe, and the transmitter to transmit the measured values may preferably be designed as a single unit.
- the transmitter housing may preferably have slots in the area of the transmitter for wireless transmission of the measured values.
- the signal of the pressure sensor may also be used as a signal for the locating probe.
- the pressure sensor may be a part of the locating probe, in which case the term “locating probe” comprises an electronic device that may be designed as a transmitter. There may be (part) identity between the locating probe and the pressure sensor if, for example, the signal of the pressure sensor is being used as the signal for the locating.
- the electronic device may emit a signal, which may particularly be present in the form of electromagnetic waves.
- the collection space is separate from the drilling fluid feed line in order to not influence the pressure sensor due to drilling fluid being fed in.
- the pressure sensor can thus primarily measure the pressure in the drilling channel.
- the drilling fluid can escape into the drilling channel at the drill head, without influencing the pressure sensor.
- the pressure sensor can thus obtain the pressure information from the drilling channel into which the drilling fluid is flowing, but not until the drilling fluid has flowed into the drilling channel.
- the collection space extends in the direction of the longitudinal axis of the transmitter housing, which leads to an optimized utilization of the volume of the transmitter housing.
- a (wireless) transmitter transmitting the values of the pressure sensor can transmit, in the present case in parallel, due to the arrangement with a defined position with respect to longitudinal axis of the transmitter housing.
- the collection space may preferably be extended longitudinally.
- the longitudinal axis of the collection space may lie essentially parallel with respect to longitudinal axis of the transmitter housing.
- the collection space may, at least partially, have an edge-side border, which may be rotationally symmetric in the direction of a longitudinal axis of the collection space.
- the collection space may particularly be adapted to the outer dimensions of a pressure sensor.
- a channel is provided from the exterior compartment to the collection space, which has at least one section forming an angle to the longitudinal axis of the transmitter housing that is greater than 0° and less than 180°.
- the blades and/or inserts provided at the front on the drill head may be left, as is customary; the channel may be routed independently of the drill head.
- the channel comprise a section having an angle to the longitudinal axis of the transmitter housing that is greater than 60° and less than 120°.
- the angle of the section to the longitudinal axis of the transmitter housing forms an angle of 90°.
- the opening of the channel from the exterior compartment into the transmitter housing is formed spaced apart from the blades of the drill head, particularly from an outlet for the drilling fluid from the drill head, in the direction of the longitudinal axis of the transmitter housing.
- the collector has an inlet opening that is sealed with at least one seal on the edge side such that a pressure surface of the pressure sensor is surrounded by the seal.
- the collector space has a passage on an end opposite the inlet opening having a fluid connection with the exterior compartment.
- a rod-shaped element for example, may be inserted through the passage that can be used to drive out a jammed probe.
- the rod-shaped elements may be a smooth rod or a rod with thread (a threaded rod).
- the passage has an inner thread that is preferably adapted to the outer thread of a closure that can be used to close off the passage.
- the thread of the passage may also be adapted to the thread of the threaded rod that can be used to drive out the pressure sensor.
- the transmitter housing has a non-return valve on the end that only allows the flow of fluid in the direction toward a drill head. This ensures that the pressure in the drilling channel does not drop during a rod change. While the rods and/or rod linkages are being disassembled, the non-return valve can ensure that the drilling fluid cannot flow through the rods uninhibited, and out of any disassembled rods. This ensures that the pressure in the drilling channel does not drop during a rod change. A reduction in pressure may suggest that a sufficient backflow is ensured for the drilling fluid, which could lead to a malfunction.
- the transmitter housing is located behind the drill head so that the transmitter housing has a connection for a drill head.
- the invention also provides for a method to measure a fluid pressure in a drilling channel in which the fluid pressure in the drilling channel is measured with a pressure sensor in a transmitter housing via a fluid connection to the drilling channel.
- FIG. 1 shows a transmitter housing according to the invention connected to a drill head and a rod linkage, in a side view, in a partial section;
- FIG. 2 shows a front view of the rod section shown in FIG. 1 ;
- FIG. 3 shows a sectional view along line A-A from FIG. 2 ;
- FIG. 4 shows a sectional view along line B-B from FIG. 2 ;
- FIG. 5 shows a sectional view along line C-C according to FIG. 2 .
- FIG. 1 shows a rod section for the HDD.
- the rod section has a drill head 4 on the head side.
- a transmitter housing 13 is connected to the drill bit or drill head 4 .
- the drill head 4 is placed on the transmitter housing 13 and secured, with positive engagement against twisting, and in the longitudinal direction by means of a spring pin.
- Terminating at the transmitter housing 13 is a rod linkage 15 , which is bolted thereto on the other end of the transmitter housing 13 .
- the transmitter housing 13 has a collector space 10 in which a pressure sensor 1 can be housed.
- the pressure sensor 1 can be designed as one unit with a locating probe and a transmitter for wireless transmission of the measured or determined values of the pressure sensor 1 .
- the pressure sensor 1 is separated from the drilling fluid intended for flushing, which is routed to the drill head 4 via a drilling fluid feed line 3 , by means of a seal 2 .
- the collector space 10 and thus the pressure sensor 1 , has a fluid connection with the exterior compartment—the drilling channel 6 via a bore 5 .
- the fluid in the drilling channel 6 can thus enter the transmitter housing 13 via the bore 5 and a pressure sensor 1 is in contact with the fluid in the drilling channel 6 in order to measure that same pressure.
- the bore 5 extends transversely with respect to the longitudinal direction of the transmitter housing 13 .
- a filter 7 disposed between the bore 5 and the collector space 10 or the pressure sensor 1 , prevents the penetration of contaminants.
- seals 8 disposed in the transmitter housing 13 , which ensure that the fluid in the drilling channel 6 only reaches a pressure surface 9 of the pressure sensor 1 disposed on the head-side end of the pressure sensor.
- An inlet opening of the collector space 10 is sealed off from the pressure sensor 1 via seals 8 , so that only the pressure surface 9 of the pressure sensor 1 is exposed.
- a jammed pressure sensor 1 can be pushed out with a threaded rod, or knocked out with a rod, for example, inserted into a closeable (e.g. via a closure 16 ) threaded bore 11 .
- a non-return valve 12 is disposed in the transmitter housing 13 at the end, so that the pressure in the drilling channel 6 can not drop, even during a rod change—if for example the rod linkage 15 is separated from the transmitter housing 13 .
- the drilling fluid can flow in the direction of the drill head 4 via the drilling fluid feed line 3 and be routed to the drill head 4 . Backflow through the rod, particularly through the transmitter housing 13 , is not possible because of the non-return valve 12 .
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims (11)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013006342 | 2013-04-15 | ||
DE102013006342.6 | 2013-04-15 | ||
DE102013006342 | 2013-04-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20140318233A1 US20140318233A1 (en) | 2014-10-30 |
US9500032B2 true US9500032B2 (en) | 2016-11-22 |
Family
ID=51618486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/253,390 Active 2034-09-11 US9500032B2 (en) | 2013-04-15 | 2014-04-15 | Transmitter housing and method for measuring a fluid pressure |
Country Status (2)
Country | Link |
---|---|
US (1) | US9500032B2 (en) |
DE (1) | DE102014004457B4 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3744307A (en) * | 1972-06-28 | 1973-07-10 | Geophysical Res Corp | Pressure gauge |
US6487901B1 (en) * | 1998-12-28 | 2002-12-03 | Robert C. Keyes | Transmitter housing for probe in a directional underground drilling apparatus |
US20120181044A1 (en) * | 2011-01-14 | 2012-07-19 | Tesco Corporation | Flow control diverter valve |
-
2014
- 2014-03-28 DE DE102014004457.2A patent/DE102014004457B4/en active Active
- 2014-04-15 US US14/253,390 patent/US9500032B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3744307A (en) * | 1972-06-28 | 1973-07-10 | Geophysical Res Corp | Pressure gauge |
US6487901B1 (en) * | 1998-12-28 | 2002-12-03 | Robert C. Keyes | Transmitter housing for probe in a directional underground drilling apparatus |
US20120181044A1 (en) * | 2011-01-14 | 2012-07-19 | Tesco Corporation | Flow control diverter valve |
Also Published As
Publication number | Publication date |
---|---|
DE102014004457A1 (en) | 2014-10-16 |
US20140318233A1 (en) | 2014-10-30 |
DE102014004457B4 (en) | 2017-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TRACTO-TECHNIK GMBH & CO. KG., GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOIKE, VOLKER;REEL/FRAME:033454/0575 Effective date: 20140505 |
|
AS | Assignment |
Owner name: TRACTO-TECHNIK GMBH & CO. KG., GERMANY Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT SERIAL NO. 12/253,390 PREVIOUSLY RECORDED AT REEL: 033454 FRAME: 0575. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:BOIKE, VOLKER;REEL/FRAME:033503/0131 Effective date: 20140505 |
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STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
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Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 4 |
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Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 8 |